Common Errors

When integrating with our APIs, you may encounter the following HTTP status codes.
Use the descriptions and guidance below to understand the cause and how to fix it.

Status Codes

Code	Description
200	Success. The request was processed successfully and the action was completed.
400+	Client error. The request is invalid or references a resource that does not exist (for example, sending an email template that hasn’t been created). Check the error message in the response for details.
401	Authentication error. The API key is missing, invalid, or not passed as a Bearer token in the Authorization header.
403	Permission denied. The API key does not have permission to perform the requested action.
429	Rate limit exceeded. You can send up to 10 requests per 10 seconds. Retry after a short delay or implement request throttling.
500	Server error. Something went wrong on our side. If the issue persists, please contact support.